A British man says he wore an explosive packed shoe on two flights in 2001 including one to Britain but didn't detonate it because he was hoping to use it for an attack over America.
Saajid Badat testified by video in New York City at the trial of Sulaiman Abu Ghaith, Osama bin Laden's son-in-law.
Abu Ghaith could face life in prison if he's convicted of conspiring to kill Americans and providing material support to al Qaida in his role as the terror group's spokesman after the September 11 attacks. He has pleaded not guilty.
Badat says he wore a shoe bomb on at least one flight from Karachi, Pakistan, to Holland and another from Holland to Britain in December 2001.
But Badat said he quit the plot when he returned home and his parents expressed concern he had been in Afghanistan.